Commit 4df0bd5e authored by Priyanka Dandamudi's avatar Priyanka Dandamudi Committed by Tejas Upadhyay
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drm/xe/uapi: Add documentation for DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING 



Add documentation for drm_xe_gem_create structure flag
DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING.

v2: Modified to be in a more generalised way.

Signed-off-by: default avatarPriyanka Dandamudi <priyanka.dandamudi@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250728043336.3319521-1-priyanka.dandamudi@intel.com


Signed-off-by: default avatarTejas Upadhyay <tejas.upadhyay@intel.com>
parent 45fbb510

include/uapi/drm/xe_drm.h

+5 −1
Original line number Diff line number Diff line
@@ -760,7 +760,11 @@ struct drm_xe_device_query { 
 * gem creation

 *

 * The @flags can be:

 *  - %DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING

 *  - %DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING - Modify the GEM object

 *    allocation strategy by deferring physical memory allocation

 *    until the object is either bound to a virtual memory region via

 *    VM_BIND or accessed by the CPU. As a result, no backing memory is

 *    reserved at the time of GEM object creation.

 *  - %DRM_XE_GEM_CREATE_FLAG_SCANOUT

 *  - %DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM - When using VRAM as a

 *    possible placement, ensure that the corresponding VRAM allocation